Table of Contents
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Digital Scroll Central Air Conditioner
FOUR-WAY CASSETTE TYPE
INSTALLATION MANUAL
Model:
MDV-D28Q
MDV-D45Q
MDV-D71Q
MDV-D90Q
Please read this installation manual carefully before installing your air conditioner.
Please keep this manual in a safe place for future reference.
/N
MDV-D36Q
4
2
/N
MDV-D56Q
4
2
/N
MDV-D80Q
4
2
/N
MDV-D112Q
4
2
(INDOOR UNIT)
/N
4
2
/N
4
2
/N
4
2
/N
4
2
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Table of Contents
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Summary of Contents for MDV MDV-D28Q4/N2
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Page 1: Installation Manual
Digital Scroll Central Air Conditioner FOUR-WAY CASSETTE TYPE (INDOOR UNIT) INSTALLATION MANUAL Model: MDV-D28Q MDV-D36Q MDV-D45Q MDV-D56Q MDV-D71Q MDV-D80Q MDV-D90Q MDV-D112Q Please read this installation manual carefully before installing your air conditioner. Please keep this manual in a safe place for future reference. -
Page 2: Table Of Contents
CONTENT PRECAUTION....................1 ACCESSORIES....................1 SAFETY PRECAUTION...................2 INSTALLATION LOCATIONS................3 INDOOR UNIT INSTALLATION................4 DRAINAGE PIPE INSTALLATION..............6 REFRIGERANT PIPE INSTALLATION.............9 ELECTRIC WIRING..................11 CONTROL......................13 TROUBLE SHOOTING..................15 ELECTRIC THROTTLE PART INSTALLATION..........15... -
Page 3: Precaution
PRECAUTION This manual is suitable for indoor unit. Refer to outdoor unit installation manual to install outdoor unit. The indoor unit and the outdoor unit should not share one power supply. ACCESSORIES Name Quantity Outline Function Installation manual This manual For heat insulation of pipes connection Heat insulation pipe part. -
Page 4: Safety Precaution
SAFETY PRECAUTION Read the following "SAFETY PRECAUTIONS" carefully before installation. The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as below. Incorrect installation due to ignoring of the instruction will cause harm or damage, and the seriousness is classified by the following indications. -
Page 5: Installation Locations
2. Electrical Insulation must be done on the air conditioner and the building complying to National Regulations. INSTALLATION SPACE Above Above Above 100cm 100cm 100cm Ceiling Obstacle Models Size A(mm) Ceiling Height Above 315 MDV-D28(36 45 80)Q Above 365 MDV-90(112)Q Wall Fire-proof material material or other nonflammable Flammable Fire-proof materials other than material structure... -
Page 6: Indoor Unit Installation
To take precautions against typhoon/earth quake. D(Hook-location) Be sure to install strictly according to related C (Body) specification. Wrong installation will B (Ceiling hole) cause the unit to fall. A(Panel) Model(MDV-D) A 28~36Q 71~80Q Hole 90~112Q 1350 1290 1230 1030... - Page 7 CEILING HOLE AND THE HOOK INSTALLATION Preparation Work on the Ceiling Installation method should be changed under the different construction structure. Please consult the professional for the detailed information. After opening a hole, the ceiling should be horizontal and strong to prevent vibration. Cut the beams at the hole and remove them.
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Page 8: Drainage Pipe Installation
Install the hanging bolt into T groove of the hanging tool. Overhang the indoor unit and ensure it is level using a level indicator. Level Indicator Hanging Screw Bolt Hanging Ear Indoor Unit Ceiling Installation Plate 30mm Hanging Screw Bolt M10 f10 Gasket Locking Nut M10 Install it down the... - Page 9 1.5m~2m Bend Support Up and Down Lean Downward over 1/100 Fold As long as possible about (10mm) Lean Downward VP30 over 1/100 Drainage Pipe Material, Heat-insulating Material The listed material should be used: Drainage Pipe Polyvinyl chloride pipe (f32mm outer diameter) Material Heat Insulation Foamed polyethylene insulation plate (10mm thickness)
- Page 10 Heat Insulation Wrap the flexible hose carefully with the attached heat insulation material from the start to the end (to indoor part) Flexible Hose Hose band Field-arranged Polyvinyl Chloride Pipe Attached Heat-insulation Heat-insulation Material Material Drainage Upward To make sure that the drainage pipe would not slant downward, lead it upward to a height 360mm maximum, then downward lead it.
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Page 11: Refrigerant Pipe Installation
REFRIGERANT PIPE INSTALLATION CAUTION Ventilate the air if there was any refrigerant leakage during the installation. Leaked refrigerant will generate poisonous gas if meeting fire. Make sure there is no refrigerant leakage after the installation. Leaked refrigerant will generate poisonous gas if meeting fire. Allowed Length and Drop of Pipes Requirements are different when installing the outdoor unit, please refer to outdoor unit installation manual for detailed information. - Page 12 Air Purging Use a vacuum pump, to vacuum from the gas side refrigerant adding mouth of the outdoor unit. Don t use the refrigerant of the outdoor unit to do the vacuum. (A certain volume of refrigerant had been added into the outdoor unit in factory.) Open/Close the valves Open/Close the spools or the valves of outdoor unit with a f5mm hexagon spanner.
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Page 13: Electric Wiring
ELECTRIC WIRING WARNING Specified power cables should be used. Do not apply any pressure on the terminals used to connect. Improper connection may cause fire. Grounding must be properly done. The grounding wire should be away from gas pipes, water pipes, telephone, lightening rods or other grounding wires. -
Page 14: Wiring Specifications
Below 50m Quantity Diameter Single Phase Twisted-pair Twisted-pair Single- Not longer than 1500m MDV-D28~112Q Wire 220-240V~ 2-core screened wire f1.5 mm 50Hz Note: This wiring specification is only for the reference ,please refer to the specified model and the related electric standard to do the wiring. -
Page 15: Control
Indoor/Outdoor Unit Signal Wire Connect the wire according to their numbers. Wrong connection may cause malfunction . Wiring Connection Seal the wiring connection with the insulation material , or the condensing dew will be caused. Panel Wiring Connect the Swing Motor terminal block according to the Panel Installation Manual. Terminal Board Diagram Please refer to the indoor unit wiring diagram for the wiring. -
Page 16: Toggle Switch
ENC1 TOGGLE SWITCH FOR SETTING ADDRESS '0-F' show the address '0-F' respectively, that is, '0-15' indoor unit (together 16 units), and the others follow the analogy. If two addresses are the same in one system , the abnormal operation will occur. ENC2 Toggle switch For set horsepower... -
Page 17: Trouble Shooting
TROUBLE SHOOTING No. Type LED Lamp flash Remarks Contents The evaporator sensor Run lamp flashes After the malfunctions Malfun- check point is abnomal , at 2.5Hz. disappear, it restores or room temp.sensor is ction automatically. abnormal. Run lamp After the malfunctions Malfun- Indoor/outdoor unit com- The timer lamp fla-... - Page 18 6292aW...
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